ThinkGeo.MapSuite.Core.GeoImage

This class represents an image you want to use on the GeoCanvas.

• System.Object
  • ThinkGeo.MapSuite.Core.GeoImage

GeoImage()

• This is the constructor used to create a new GeoImage.

• You need to set the PathFileName if you intend to use this constructor.

GeoImage(String)

• This is the constructor to create a new GeoImage

• When you specify the path and filename, it should be in the correct format as such; however, the file does not need to exist on the file system. This is to allow us to accept streams supplied by the developer at runtime. If you choose to provide a file that exists, then we will attempt to use it. If we cannot find it, then we will raise the SteamLoading event and allow you to supply the stream. For example, you can pass in “C:\NotARealPath\File1.ecw”, which does not exist on the file system. When we raise the event for you to supply a stream, we will pass to you the path and filename so you can differentiate the files.

• pathFileName
  • Type:String
  • Description:The path and filename of the image file. Note that this need not actually exisit on the file system; see remarks below.

GeoImage(Stream)

• This is the constructor to create a new GeoImage.

• If you have a stream or an image in TIFF format, you can use this constructor to create a GeoImage from it.

• imageStream
  • Type:Stream
  • Description:This parameter must be a stream in TIFF format.

GeoImage(Int32,Int32)

• This is the constructor to create a new GeoImage

• You can use this overload when you want to create a new GeoImage and only want to specify the width and height. You also need to pass in a GeoCanvas that will be used to create the GeoImage.

• width
  • Type:Int32
  • Description:This parameter is the width in pixels for the new GeoImage.

• height
  • Type:Int32
  • Description:This parameter is the height in pixels for the new GeoImage.

GetImageStream(GeoCanvas)

• This method returns the stream of the GeoImage.

• This method will raise the event that allows the user to supply their own stream. The event is also raised if they do not attempt to open the file specified in the PathFileName property.

• Type:Stream
• Description:This method returns the stream of the GeoImage.

• canvas
  • Type:GeoCanvas
  • Description:N/A

GetWidth()

• This method gets the width (in pixels) of this image.

• None.

• Type:Int32
• Description:This method returns the width (in pixels) of this image.

GetHeight()

• This method gets the height (in pixels) of this image.

• None.

• Type:Int32
• Description:This method returns the height (in pixels) of this image.

Close()

• This method closes the GeoImage. It is the same as calling the Dispose.

• This method closes the GeoImage. It is the same as calling the Dispose.

• Type:Void
• Description:None

Dispose()

• This is the Dispose for the class.

• This overload will dispose of the stream in the GeoImage and release its resources.

• Type:Void
• Description:None

ToString()

• N/A

• N/A

• Type:String
• Description:N/A

Equals(Object)

• N/A

• N/A

• Type:Boolean
• Description:N/A

• obj
  • Type:Object
  • Description:N/A

GetHashCode()

• N/A

• N/A

• Type:Int32
• Description:N/A

GetType()

• N/A

• N/A

• Type:Type
• Description:N/A

OnStreamLoading(StreamLoadingEventArgs)

• This method raises the StreamLoading event, allowing you to specify your own stream.

• None

• Type:Void
• Description:N/A

• e
  • Type:StreamLoadingEventArgs
  • Description:This parameter represents the event arguments for the StreamLoading event.

GetImageStreamCore(GeoCanvas)

• This method returns the stream of the GeoImage.

• This method will raise the event that allows the user to supply their own stream. The event is also raised if they do not attempt to open the file specified in the PathFileName property.

• Type:Stream
• Description:This method returns the stream of the GeoImage.

• canvas
  • Type:GeoCanvas
  • Description:N/A

Finalize()

• This is the Dispose method for the class.

• N/A

• Type:Void
• Description:N/A

MemberwiseClone()

• N/A

• N/A

• Type:Object
• Description:N/A

Opacity

N/A

N/A

• Type:Single

PathFilename

This property returns the path and filename of the image you want to represent.

When you specify the path and filename, it should be in the correct format as such; however, the file does not need to exist on the file system. This is to allow us to accept streams supplied by the developer at runtime. If you choose to provide a file that exists, then we will attempt to use it. If we cannot find it, then we will raise the SteamLoading event and allow you to supply the stream. For example, you can pass in “C:\NotARealPath\File1.ecw”, which does not exist on the file system. When we raise the event for you to supply a stream, we will pass to you the path and filename so you can differentiate the files.

• Type:String

PathName

This property returns the path part of the PathFileName.

None

• Type:String

FileName

This property returns the filename part of the PathFileName.

None

• Type:String

CanvasImageFormat

This property returns the image format.

None

• Type:Guid

NativeImage

N/A

N/A

• Type:Object

StreamLoading This event allows you to pass in your own stream to represent the GeoImage.

If you choose, you can pass in your own stream to represent the GeoImage. The stream can come from a variety of places, such as isolated storage, a compressed file, or an encrypted stream. When the GeoImage is finished with the stream it will dispose of it, so be sure to keep this in mind when passing the stream in. If you do not pass in an alternate stream, the GeoImage will attempt to load the file from the file system using the PathFileName property.

Event Arguments:StreamLoadingEventArgs